/*
 * Copyright 2008 - 2009 Lars Heuer (heuer[at]semagia.com). All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.semagia.atomico.server.impl.restlet.resources;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;

import org.restlet.data.MediaType;
import org.restlet.representation.StreamRepresentation;

import com.semagia.atomico.dm.IWritable;

/**
 * Representation that utilizes a {@link IWritable} for the output.
 * 
 * @author Lars Heuer (heuer[at]semagia.com) <a href="http://www.semagia.com/">Semagia</a>
 * @version $Rev: 66 $ - $Date: 2010-09-06 15:29:07 +0000 (Mon, 06 Sep 2010) $
 */
final class WritableAwareRepresentation extends StreamRepresentation {

    private final IWritable _writer;

    /**
     * Initializes an instance.
     *
     * @param mediaType The media type which is written by the <tt>writer</tt>.
     * @param writer The writer.
     * @param modificationTime The modification time of the representation.
     */
    public WritableAwareRepresentation(final MediaType mediaType, 
            final IWritable writer, final long modificationTime) {
        super(mediaType);
        _writer = writer;
        setModificationDate(new Date(modificationTime));
    }

    /* (non-Javadoc)
     * @see org.restlet.resource.Representation#getStream()
     */
    @Override
    public InputStream getStream() throws IOException {
        return null;
    }

    /* (non-Javadoc)
     * @see org.restlet.resource.Representation#write(java.io.OutputStream)
     */
    @Override
    public void write(OutputStream out) throws IOException {
        _writer.write(out);
    }

}
